Lock



. June .18, 1929. 1 J. TOWSTY 1,718,090

LOCK Filed March' 23, 1928 $heet$-Sheet 1 ATTORNEY) June 18, 1929.

J. TOWSTY- LOCK Filed March 23, 1928 3 Sheets-Sheet 2- INVENTOR.

1: r'r omvgyj d Tau/orgy.

June 18, 1929. ows-ry 1,718,090

LOCK

- Filed March 25, 1928 I5 Sheets-Sheet gg/i 6; @j' fci A TTORNEYSPatented June 18, 1929.

UNITED STATES PATENT OFFICE.

JOHN TOWSTY, 0F TORONTO, ONTABFC CANADA,-ASSIG-NOR OF ONE-HALF TO WASYLCEPENDA, OF TORONTO, CANADA.

LOCK.

Application filed March 23, 1928. Serial No. 264,180.

This invention relates to certain new and useful improvements in locksand has for its primary objectto provide a lock of the sliding bolt typein which permutation devices associated with the sliding bolt areadapted to be operated to permit movement of the bolt under influence ofan operating key.

' A further object of the invention is to provide a lock of the slidingbolt type wherein the bolt is key operated or shifted with con troldevices for the bolt, some of which are cooperative and operated byothers to be moved to bolt releasing position whereby the bolt may beshifted by a key.

- lVith the above and other objects in view that will become apparent asthe nature of the invention is better understood, the same consists inthe novel form, combination and arrangement of parts hereinafter morefully described, shown in the accompanying drawings and claimed. p

In the accompanying drawing, wherein like reference characters indicatecorresponding parts throughout the several views,

Figure 1 is a fragmentary elevational view of a structure equipped withthe improved lock construction, showing the operating head for the boltcontrol device,

Figure 2 is a horizontal sectional View showing the upper. in elevation,V

Figure 3 is a horizontal sectional View taken through the lock casing,

Figure i isa detail sectional view taken on line 4- 1 of Figure 3showing the pawl and ratchet mechanism associated with one of thecontrol devices for the sliding bolt to prevent retrograde movement ofthe control device,

Figure 5 is a detail sectional View taken on line 55 of Figure 3 showingthe sliding bolt projected from the lock casing,

Figure 6 is a cross-sectional view taken on line 6-6.of Figure 5 showinga spring pressed pin constituting one of the control devices for thesliding bolt,

Figure 7 is a detail sectional view, similar to Figure 5 showing thebolt in retracted position,

H ,,1 a i: the

edge of the lock, casing,

igure 8 is a cross-sectional view taken on bolt control device shown inFigure 9idetached from the lock casing,

- Figure 11 is a detail sectional view taken on line'11'11 of Figure 3,v

b Figure 12 is a perspective view of the lock 0 t, I i

Figure 13 is a cross-sectional view'takenon line 13-13 of Figure12,

Figure 14 is a perspective view of a toothed wheel forming a part of oneof the bolt controlled devices, 1

Figure 15 is a perspective View of the bolt controlled device with whichthe toothed wheel, shown in Figure 14-, is associated,

Figure 16 is'a detail sectional View taken on line 1616 of Figure 15,showing the radial slit with which the key of the toothed wheel shown inFigure 14 is adapted to be associated for changing the combination ofthe bolt control device, and v Figure 17 shows in perspective theseveral elements of. the bolt controlled device shown in Figure 10.2

, Referring more in detail to the accompany ing drawings, it beingunderstood that the lock is intended for differentapplications, there isillustrated, a stationary member 1 and a movable member 2 with the lookstructure carried by the movable member 2 and having its bolt engageablewith the stationary member 1 to hold the member 2 against movement, thelock construction comprismg awcasing having a bottom wall 1, side walls2, end walls 3, and 4 and a removable top wall 5 retained inposition bythe screws 6 passing therethrough and entering lugs carried by the endwalls of the lock casing. The

lock casing is'set into the recess formed in the movable member-2 and isretainedtherein by the fastening screws 7.

The lock casing incloses a sliding bolt 8 shown in detail in Figure 12,the bolt being of a length substantially the same as the lock rcasing sothat the nose 8 thereof is flush with the end wall 4: of the casing whenretracted, the endwall 4 of the lock easing having an opening!) thereinfor the passage of the bolt and is further provided with a shoulder 10bordering the opening to form a siuaport for the nose end of the bolt. Alongitudinally extending slot 11 is formed in the bolt and alongitudinally tei'isioned pin J ttVtis suptmrted at opp) ends in i itis of a? passes through the bolt slot 11 and forms a support for theinner end of the bolt.

A plurality of devices engageable with the bolt 8 for controllingsliding movement thereof are provided and these control devices includethe pin 12, the pin 12 carries a laterally directed tapering lug 13thatis engageable in a similarly formed recess 14 formed in a side wall ofthe bolt slot 11 to hold the bolt against movement as will be evidentfrom an inspection of Figures 5 and 6. The pin 12 extends through thebottom wall 1 of the lock casing and projects outwardly thereof throughthe tubular boss 15 surrounding the opening in the bottom wall 1 of thelock casing through which the pin extends. A button or cap 16 is fixedto the outer end of the pin 12 while a coil spring 17 surrounds the pinbetween the cap 16 and bottom wall 1 of the lock casing for normallyholding the lug 13 in the recess 14 of the bolt 8. The lug 13 may bedisengaged from the recess by pressing inwardly upon the pin 12 by engaging the cap 16 and a quarter turn imparted to the pin will dispose thelug 13 in the slot 11 of the bolt as shown in Fig. 7 and permit movementof the bolt when the other control devices are moved to releasingpositions relative to the bolt.

As shown more clearly in Fig. 12, the bolt 8 has one side thereofrecessed at opposite sides of the slot 11 as at 18 to provide aclearance for part of other control devices for the bolts. The end ofthe recess portion 18 adjacent the nose end 8 of the bolt is cut throughto form a circular opening 18 for purposes presently to appear. A pairof concentric grooves 1-9 are formed in the outer face of the bolt 8 andsurround the circular opening 18 as illustrated. The detail parts ofanother bolt control device are shown in Figures 10 and 17 and comprisea stud crew 20 having a disk shoulder 21 that is journaled in the bottomwall 1 of the lock casing as shown in Figure 9 with an operating head 22carried by the outer end of the stud crew 20. The stud screw 20 carriesa ratchet wheel 23 adjacent the bearing disk 21 while the stud screw atthe opposite side of the ratchet wheel 23 carries an externally threadedtubular bearing 24. The tubular bearing 24 of the stud screw isrotatable in the disk plate 25, anchored as at 26 in the recess 27formed in the bottom wall 1. of the lock casing and said disk platecarries a dog 28 that is tensioned as at 29 for engagement with theratchet wheel 23 to prevent retrograde movement thereof. A disk 30 isthreaded onto the tubular bearing 24 and carries spaced arcuate edgeflanges 31 projecting perpendicularly from the disk plate 30 forassociation with the arcuate grooves 19 in the bolt 8. lVhen the flanges31- are engaged in the grooves 19, the bolt 8 is retained againstmovement. The flanges 31 are displaced from the arcuate grooves 19 byoperating the head or knob 22 that carries a stud screw upon which thedisk plate 30 is mounted and said flanges are disposed in the positionshown by dotted lines in Figure 7 at opposite sides of the bolt 8. Asshown in Figure 1, the knob carries an arrow head or indicator 32 toregister with the character Figure 32 on the lock casing for determiningthe position of the flanges 31 with respect to the grooved portions 19of the bolt 8.

A toothed wheel 33 is fixed to the stub shaft 34 that is journaled inthe lock casing, the stub shaft 34 projecting from one side of thetoothed wheel 33 while the other bearing for the wheel comprises anoblong block 35 carrying an end pin 36 that is rotatably received 1n thetubular bearing 24 of the stud screw 20, the assembly being shown moreclearly in Figure 10. The stub shaft 34 car-' ries a collar 37 to spacethe toothed wheel 33 from the lock casingwhile the oblong block 35 atthe opposite side of the toothed wheel extends through the cut-outportion 18 of the recess 18 in the bolt 8. When the oblong block 35 ispositioned transversely of the bolt slot 11, retraction of the bolt 8into the easing is prevented as will at once be understood from aninspection of Figure 11. Devices are provided for rotating the toothedwheel 33 and oblong block35 to position the latter longitudinally of thebolt slot 11 as shown in Figure 9 so that the bolt 8 can be shifted.Theoperating means for the toothed wheel 33 is shown more clearly inFigures and 14 to 16 and comprises a bearing stud 38 'journaled in thebottom wall 1 of the lock casing and extending through the slot 11 inthe bolt 8 with an enlarged head 39 upon its inner end that ispositioned in the recessed portion 18 of the bolt. The outer end of thebearing stud 38 is reduced and threaded for the reception of theoperating knob 40 that carries an integral rotatable dial plate 41readable in connection with a character 41- upon the lock casing. Thehead 39 is provided with a plurality of radial grooves 42 opening attheir inner sides in an axial bore 43 into which bore the bearing shaft44 carrying the toothed wheel 45 is removably received, the other end ofthe bearing shaft being journaled'in the top wall 5 of the lock casing.The shaft 44 carries a key 46 positionable in a desired one of theradial slots 42 to vary the position of the key 46 relative tothegraduations upon the dial 41. The disk wheel 45 is placed in meshingengagement with the toothed wheel 43 and when the knob 40 is rotated torotate the wheel 45, rotation is imparted to the wheel 33 for shiftingthe oblong block 35 relative to the slot 11 in the bolt 8 invention, itis believed that the construction and operation thereof will at once beapparent, it being noted .thatthe operation of the bolt 8 is controlledby manually operable permutation devices and when said devices areshifted to positions to permit sliding movement of the bolt, a key is.inserted .through the key opening 47 in the lock casing with the wardthereof positioned for engagement with the lugs 48 carried by the upperside of the bolt as indicated in Figure 7. The knob 22 operates the disk30 to 'displace the arcuate flanges 31 from the arcuate grooves 19 inthe bolt 8, while the knob 40 operates the toothed Wheel which in turnrotates the toothed wheel 33 to position the oblong block 35longitudinally of the bolt slot 11 so that the bolts may be shifted. Thelug 13 upon the pin 12 is then displaced from the side notch 14 in thebolt slot by operating the knob 16 and the bolt is then free to bemoved.

lVhile there is herein shown and described the preferred embodiment ofthe present in vention, it is nevertheless to be understood that minorchanges may be made therein without departing from the spirit and scopeof the invention as claimed.

hat I claim as new is 1. In a lock of the character described, a lockcasing, a sliding bolt therein, a plurality of devices associated withthe bolt for controlling sliding movementof the same, one of saiddevices comprising a rotatable disk, spaced arcuate flanges extendingfrom one face of the disk and said bolt having grooves therein toreceive the flanges, and being longitudinally slotted, a stub shaftjournalled in the casing and having a rectangular block within the slot,said slot having a lateral enlargement to permit transverse potioning ofthe block to hold the bolt against movement, and one of the bolt controldevices being operable to position the block in the bolt slot to permitsliding movement of the' bolt.

2. In a lock of the character described, a lock casing, a sliding bolttherein, a plurality of devices associated with the bolt for controllingsliding movement of the same, one of said devices comprising a rotatabledisk, spaced arcuate flanges extending from one face of the disk andsaid bolt having grooves therein to receive the flanges, and beinglongitudinally slotted, a stub shaft journalled in the casing and havinga rectangular block within the slot, said slot having a lateralenlargement to permit transverse positioning of the block to hold thebolt against movement. a toothed wheel fixed to the stub shaft, anothershaft journalled in the casing, a toothed wheel thereon engaged with theaforesaid toothed wheel, andmeans for operating the second shaft.

3. In a lock of the character described, a lock casing, a sliding bolttherein, a plurality of devices associated with the belt for controllingsliding movement of the same, one of said devices comprising a rotatabledisk,

spaced arcuate flanges extending from one face of the disk and said bolthaving grooves 'therein to receive the flanges, and being longitudinallyslotted, astub shaft journalled in the casing and having a rectangularblock within the slot, said slot having a lateral enlargement to permittransverse positioning of the block to hold the bolt against movement, atoothed wheel fixed to the stub shaft, another shaft j ournalled in thecasing, a toothed Wheel thereon engaged with the foresaid toothed wheel,means for operating the second shaft, and an adjustable engagement between the second shaft and toothed wheel, whereby movement of the secondtoothed Wheel is varied in positioning the block in bolt releasingposition.

4:. In a lock of the character described, a lock casing, a sliding bolttherein, a plurality of devices associated with the bolt for controllingsliding movement of the same, one of said devices comprising arotatable-disk, spaced arcuate flanges extending from one face of thedisk and said bolt having grooves therein to receive the flanges, andbeing longitudinally slotted, a stub shaft journalled in the casing andhaving a rectangular block within the slot, said slot having a lateralenlargement to permit transverse positioning of the block to hold thebolt against movement, a toothed wheel fixed to the stub, shaft, anothershaft journalled in the casing, a toothed wheel thereon engaged with theaforesaid toothed wheel, means for operating the second shaft, anadjustable engage ment between the second shaft and toothed wheelcomprising a radially slotted head on the shaft, and a key on the wheelselectively positioned in a slot whereby movement of the second toothedwheel is varied in positioning the block in bolt releasing position.

5. In a lock of the character described, a lock casing, a sliding bolttherein having a longitudinal slot and concentric arcuate grooves in oneside face thereof, a tumbler disk journalled on a pin extending throughthe bolt slot and disposed at the grooved side of the bolt and arcuateflanges on the disk adapted to enter the grooves for holding the bolt inprojected locked condition.

6. In a lock of the character described, a lock casing, a sliding bolttherein having a longitudinal slot and concentric arcuate grooves in oneside face thereof, a tumbler disk journalled on a pin extending throughthe bolt slot and disposed at the grooved side of the bolt and arcuateflanges on the disk adapted to enter the grooves for holding the bolt inprojected locked condition, and said bolt and pin being cooperativelyconstructed to further hold the bolt locked.

7. In a lock of the character described, a

lock casing, a sliding bolt therein having a longitudinal slot andconcentric arcuate grooves in one side face thereof, a tumbler diskjournalled on a pin extending through the bolt slot and disposed at thegrooved side of the bolt, arcuate flanges on the disk adapted to enterthe grooves for holding the bolt in projected locked condition, theWalls of the bolt slot having opposite notches therein and a blockoperated by the pin extending through the slot, adapted to betransversely positioned in the side notches to hold the bolt locked.

In testimony whereof I afiix my signature.

JOHN TOWSTY.

